Differences in the weight of silicon carbide (SiC) carriers of the same mesh size and volume may occur and are mainly influenced by the following factors:
Porosity – high pore structure reduces the density of the material;
Additives – binder or reinforcing phases change the overall specific gravity;
Microstructure – grain size and sintering process affect the degree of densification;
Catalyst coatings – noble metal or oxide loading increases mass;
Manufacturing deviations – dimensional tolerances and sintering shrinkage cause small fluctuations.
Together, these variables determine the physical properties of the final product.